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Zakładka z wyszukiwarką danych komponentów |
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UCL2300G-S08-R Arkusz danych(PDF) 1 Page - Unisonic Technologies |
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UCL2300G-S08-R Arkusz danych(HTML) 1 Page - Unisonic Technologies |
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1 / 5 page  UNISONIC TECHNOLOGIES CO., LTD UCL2300 Preliminary LINEAR INTEGRATED CIRCUIT www.unisonic.com.tw 1 of 5 Copyright © 2014 Unisonic Technologies Co., Ltd QW-R125-034.a PSR SINGLE-STAGE APFC OFFLINE LED DRIVER DESCRIPTION The UTC UCL2300 is a high precision primary-side regulation controller with single stage Active PFC, specially designed for universal input offline flyback or buck-boost constant current LED lighting. The controller with on-chip PFC circuit achieves high power factor and low THD. Operating in critical conduction mode, the power MOSFET switching loss is reduced and the inductor is fully utilized. The UTC UCL2300 adopts proprietary primary side current sensing scheme. It can precisely control the LED current without secondary side sense and feedback circuits. The system size and cost are optimized, as well as the system reliability. The UTC UCL2300 utilizes patented line and load voltage compensation method to achieve excellent line and load regulation. And the line compensation factor can also be tuned externally for flexibility. The UTC UCL2300 offers rich protection functions to improve the system reliability, including LED open circuit protection, LED short circuit protection, VCC over voltage protection, VCC under voltage protection, CS resistor open protection and cycle by cycle current limit. All the protection functions are auto-recovery. FEATURES * Single-stage active PFC for high power factor and low THD * Primary side control constant current operation, No opto-coupler required * Ultrafast LED start (<200ms @85V) * ±3% LED current accuracy * Excellent line and load regulation * Critical conduction mode operation * Source driving method * Ultra-low (20μA) startup current * Ultra-low (300μA) Operating current * High resistance feedback resistor for improved efficiency * LED open and short circuit protection * CS resistor open and short circuit protection * Transformer saturation protection * Cycle-by-cycle current limit * VCC over-voltage and under-voltage protection * Auto fault recovery ORDERING INFORMATION Ordering Number Package Packing UCL2300G-S08-R SOP-8 Tape Reel |
Podobny numer części - UCL2300G-S08-R |
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Podobny opis - UCL2300G-S08-R |
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